                                       & \multicolumn{1}{c}{(1)}                & \multicolumn{1}{c}{(2)}                          & \multicolumn{1}{c}{(3)}               & \multicolumn{1}{c}{(4)}                & \multicolumn{1}{c}{(5)}                 & \multicolumn{1}{c}{(6)}               & \multicolumn{1}{c}{(7)}  & \multicolumn{1}{c}{(8)}  \\
                                       &                                        & \multicolumn{6}{c}{\textbf{t-test differences}}  & \multicolumn{1}{c}{}  \\
                                       & \multicolumn{1}{c}{\textbf{Control}}   & \multicolumn{6}{c}{\textbf{[p-value]}}           & \multicolumn{1}{c}{}  \\
\multicolumn{1}{l}{\textbf{Variable}}  & \multicolumn{1}{c}{\textbf{Mean/(SE)}} & \multicolumn{1}{c}{\textbf{(C)-(UI)}} & \multicolumn{1}{c}{\textbf{(C)-(S4)}} &  \multicolumn{1}{c}{\textbf{(C)-(S5)}} & \multicolumn{1}{c}{\textbf{(UI)-(S4)}} & \multicolumn{1}{c}{\textbf{(UI)-(S5)}} & \multicolumn{1}{c}{\textbf{(S4)-(S5)}} & \multicolumn{1}{c}{\textbf{F-Test}} \\ \hline \\[-2ex]
\multicolumn{9}{l}{\textbf{\textit{Panel A: Clinic characteristics}}}                                   \\ [0.5ex]  
\multicolumn{9}{l}{\textbf{\textit{Baseline characteristics}}}                                                                  \\ [0.5ex]  
\addlinespace[0.75ex]                          \# of staff involved in immunization & 2.900 & 0.167 & 0.233 & -0.134 & 0.067 & -0.301 & -0.368 & 0.884 \\    & [0.435] & [0.654] & [0.607] & [0.526] & [0.989] & [0.856] & [0.596] &  \\  Weekly vaccination services & 0.700 & 0.100 & 0.067 & 0.010 & -0.033 & -0.090 & -0.056 & 0.792 \\   & [0.085] & [0.432] & [0.553] & [0.900] & [0.736] & [0.447] & [0.651] &  \\  Stockout of vaccines in the past 2 months & 0.200 & 0.100 & 0.067 & 0.062 & -0.033 & -0.038 & -0.005 & 0.683 \\   & [0.074] & [0.187] & [0.387] & [0.813] & [0.802] & [0.733] & [0.963] &  \\  Observations &  & 60 & 60 & 59 & 60 & 59 & 59 &  \\   &  &  &  &  &  &  &  &  \\                                                                                                                                                                    \\ [-2ex]   
\multicolumn{9}{l}{\textbf{\textit{Experiment implementation}}}                                                                 \\ [0.5ex]  
\addlinespace[0.75ex]                            Timing of intervention roll-out (\# of days relative to first clinic) & 83.867 & -0.933 & -7.400 & -11.099 & -6.467 & -10.166 & -3.699 & 0.229 \\    & [10.949] & [0.832] & [0.136] & [0.094] & [0.208] & [0.278] & [0.797] &  \\  Time spent in communities for information meetings (in days) & 1.867 & -0.100 & -0.333 & -0.168 & -0.233 & -0.068 & 0.166 & 0.765 \\   & [0.298] & [0.950] & [0.485] & [0.914] & [0.417] & [0.838] & [0.240] &  \\  Time spent to list all babies in communities (in days) & 3.300 & 0.000 & 0.167 & -0.045 & 0.167 & -0.045 & -0.211 & 0.888 \\   & [0.254] & [1.000] & [0.558] & [0.950] & [0.628] & [0.907] & [0.474] &  \\  \# of clinic monitoring visits during immunization services & 7.300 & -0.900 & -1.500 & -0.769 & -0.600 & 0.131 & 0.731 & 0.118 \\   & [0.494] & [0.235] & [0.020] & [0.205] & [0.296] & [0.979] & [0.237] &  \\  Observations &  & 60 & 60 & 59 & 60 & 59 & 59 &  \\   &  &  &  &  &  &  &  &  \\                                                                                                                                                                        \\ [-2ex]   
\multicolumn{9}{l}{\textbf{\textit{Service indicators collected throughout implementation}}} \\ [0.5ex]  
\addlinespace[0.75ex]                                Received a food supplement for child at last immunization visit & 0.023 & -0.004 & -0.032 & 0.005 & -0.028 & 0.009 & 0.037 & 0.165 \\    & [0.009] & [0.771] & [0.057] & [0.742] & [0.092] & [0.473] & [0.037] &  \\  Received a bednet at last immunization visit & 0.062 & 0.023 & 0.021 & 0.013 & -0.002 & -0.010 & -0.008 & 0.478 \\   & [0.011] & [0.183] & [0.279] & [0.496] & [0.859] & [0.622] & [0.688] &  \\  Gave money to the nurse at last immunization visit & 0.146 & 0.006 & -0.031 & -0.014 & -0.036 & -0.020 & 0.016 & 0.895 \\   & [0.031] & [0.815] & [0.531] & [0.793] & [0.486] & [0.758] & [0.768] &  \\  Amount given to the nurse at last immunization visit (in Leones) & 1605.556 & 242.063 & -268.413 & -361.111 & -510.476 & -603.175 & -92.698 & 0.828 \\   & [384.588] & [0.688] & [0.620] & [0.590] & [0.503] & [0.529] & [0.917] &  \\  Immunization service was shifted in the last 2 months & 0.083 & -0.017 & -0.045 & -0.011 & -0.028 & 0.005 & 0.034 & 0.668 \\   & [0.021] & [0.446] & [0.225] & [0.721] & [0.472] & [0.913] & [0.402] &  \\  Stockout of vaccines in the past 2 months & 0.089 & -0.012 & 0.032 & 0.022 & 0.044 & 0.034 & -0.009 & 0.267 \\   & [0.021] & [0.526] & [0.129] & [0.300] & [0.105] & [0.306] & [0.738] &  \\  Observations &  & 60 & 60 & 59 & 60 & 59 & 59 &  \\   &  &  &  &  &  &  &  &  \\                                                                                                                                                    \\ [-2ex]   
\multicolumn{9}{l}{\textbf{\textit{Panel B: Community Characteristics}}}                          \\ [0.5ex]  
\addlinespace[0.75ex]                       Close community distance to clinic (in miles) & 0.938 & -0.076 & 0.019 & 0.050 & 0.095 & 0.126 & 0.031 & 0.499 \\    & [0.066] & [0.456] & [0.948] & [0.990] & [0.218] & [0.238] & [0.832] &  \\  Observations &  & 154 & 154 & 160 & 148 & 154 & 154 &  \\  Clinics &  & 60 & 60 & 59 & 60 & 59 & 59 &  \\   &  &  &  &  &  &  &  &  \\                                                                                                                            [-2ex]   
                       Far community distance to clinic (in miles) & 3.667 & -0.083 & -0.073 & -0.159 & 0.010 & -0.075 & -0.086 & 0.704 \\    & [0.108] & [0.508] & [0.456] & [0.213] & [0.848] & [0.724] & [0.441] &  \\  Observations &  & 142 & 139 & 129 & 149 & 139 & 136 &  \\  Clinics &  & 58 & 57 & 56 & 57 & 56 & 55 &  \\   &  &  &  &  &  &  &  &  \\                                                                                                                                                                                              \\ [-2ex]   
\multicolumn{9}{l}{\textbf{\textit{Community knowledge}}}                       \\ [0.5ex]  
\addlinespace[0.75ex]                       Know \# of vaccines required & 0.951 & -0.002 & 0.006 & 0.045 & 0.007 & 0.047 & 0.039 & 0.380 \\    & [0.022] & [0.973] & [0.838] & [0.098] & [0.754] & [0.127] & [0.172] &  \\  Observations &  & 291 & 289 & 281 & 294 & 286 & 284 &  \\  Clinics &  & 60 & 60 & 59 & 60 & 59 & 59 &  \\   &  &  &  &  &  &  &  &  \\                                                                                                 \\ [-2ex]   
\multicolumn{9}{l}{\textbf{\textit{Community perceptions}}}                       \\ [0.5ex]  
\addlinespace[0.75ex]                               Negligence from parents & 0.817 & -0.018 & 0.071 & 0.062 & 0.089 & 0.081 & -0.008 & 0.642 \\    & [0.050] & [0.916] & [0.225] & [0.397] & [0.213] & [0.768] & [0.731] &  \\  Lack of knowledge of benefits & 0.642 & -0.001 & 0.015 & -0.028 & 0.015 & -0.027 & -0.042 & 0.867 \\   & [0.074] & [0.602] & [0.778] & [0.998] & [0.892] & [0.577] & [0.616] &  \\  Distance to clinic & 0.400 & -0.050 & -0.049 & 0.036 & 0.000 & 0.085 & 0.085 & 0.417 \\   & [0.058] & [0.380] & [0.299] & [0.936] & [0.984] & [0.173] & [0.143] &  \\  User fees & 0.225 & 0.032 & 0.072 & 0.056 & 0.040 & 0.023 & -0.017 & 0.794 \\   & [0.061] & [0.897] & [0.688] & [0.564] & [0.617] & [0.542] & [0.929] &  \\  Staff attitude & 0.117 & -0.003 & -0.095 & -0.002 & -0.093 & 0.001 & 0.093 & 0.550 \\   & [0.046] & [0.839] & [0.102] & [0.514] & [0.130] & [0.529] & [0.722] &  \\  Observations &  & 229 & 238 & 238 & 227 & 227 & 236 &  \\  Clinics &  & 48 & 49 & 50 & 47 & 48 & 49 &  \\   &  &  &  &  &  &  &  &  \\                                                                                                  [-2ex]   
                                                                                                                                                                                                                                             \hline \hline \\ [-2ex] 